Removed `sale` from Transaction context when creating shipment #7332
Removed `sale` from Transaction context when creating shipment #7332

Putting sale in the context messes up sale_price calculations in
carrier.get_sale_price().

prakashpp/trytond-shipping,priyankajain18/trytond-shipping,riteshshrv/trytond-shipping,priyankarani/trytond-shipping,joeirimpan/trytond-shipping,fulfilio/trytond-shipping,trytonus/trytond-shipping,tarunbhardwaj/trytond-shipping